1005 I Think I Need a Houseboat

继续水,看题时间比写题长

1. //3522940_AC_16MS_188K
2. #include<iostream>
3. #include<math.h>
4. using namespace std;
6. double r1,r0,x,y,r3;
7. int year,n,t;
9. int main()
10. {
11.     //freopen("d:/in.txt","r",stdin);
12.     cin>>t;
13.     n=0;
14.     while(t--)
15.     {
16.         cin>>x>>y;
17.         r3=sqrt(x*x+y*y);
18.         year=0;
19.         r0=0;
20.         n++;
21.         while(1)
22.         {
23.             year++;
24.             r1=sqrt(100/3.1415926+r0*r0);
25.             if(r1>r3)
26.             {
27.                 break;
28.             }
29.             r0=r1;
30.         }
31.         printf("Property %d: This property will begin eroding in year %d./n",n,year);
32.     }
33.     cout<<"END OF OUTPUT./n";
34.     return 0;
35. }